81218520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:634

約数の個数: 192

約数和(自身を含む): 292144320

約数和(自身を除く): 210925800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 23, 24, 30, 34, 36, 40, 45, 46, 51, 60, 68, 69, 72, 85, 90, 92, 102, 115, 120, 136, 138, 153, 170, 180, 184, 204, 207, 230, 255, 276, 306, 340, 345, 360, 391, 408, 414, 460, 510, 552, 577, 612, 680, 690, 765, 782, 828, 920, 1020, 1035, 1154, 1173, 1224, 1380, 1530, 1564, 1656, 1731, 1955, 2040, 2070, 2308, 2346, 2760, 2885, 3060, 3128, 3462, 3519, 3910, 4140, 4616, 4692, 5193, 5770, 5865, 6120, 6924, 7038, 7820, 8280, 8655, 9384, 9809, 10386, 11540, 11730, 13271, 13848, 14076, 15640, 17310, 17595, 19618, 20772, 23080, 23460, 25965, 26542, 28152, 29427, 34620, 35190, 39236, 39813, 41544, 46920, 49045, 51930, 53084, 58854, 66355, 69240, 70380, 78472, 79626, 88281, 98090, 103860, 106168, 117708, 119439, 132710, 140760, 147135, 159252, 176562, 196180, 199065, 207720, 225607, 235416, 238878, 265420, 294270, 318504, 353124, 392360, 398130, 441405, 451214, 477756, 530840, 588540, 597195, 676821, 706248, 796260, 882810, 902428, 955512, 1128035, 1177080, 1194390, 1353642, 1592520, 1765620, 1804856, 2030463, 2256070, 2388780, 2707284, 3384105, 3531240, 4060926, 4512140, 4777560, 5414568, 6768210, 8121852, 9024280, 10152315, 13536420, 16243704, 20304630, 27072840, 40609260, 81218520]

約数ペア:

[(1, 81218520), (2, 40609260), (3, 27072840), (4, 20304630), (5, 16243704), (6, 13536420), (8, 10152315), (9, 9024280), (10, 8121852), (12, 6768210), (15, 5414568), (17, 4777560), (18, 4512140), (20, 4060926), (23, 3531240), (24, 3384105), (30, 2707284), (34, 2388780), (36, 2256070), (40, 2030463), (45, 1804856), (46, 1765620), (51, 1592520), (60, 1353642), (68, 1194390), (69, 1177080), (72, 1128035), (85, 955512), (90, 902428), (92, 882810), (102, 796260), (115, 706248), (120, 676821), (136, 597195), (138, 588540), (153, 530840), (170, 477756), (180, 451214), (184, 441405), (204, 398130), (207, 392360), (230, 353124), (255, 318504), (276, 294270), (306, 265420), (340, 238878), (345, 235416), (360, 225607), (391, 207720), (408, 199065), (414, 196180), (460, 176562), (510, 159252), (552, 147135), (577, 140760), (612, 132710), (680, 119439), (690, 117708), (765, 106168), (782, 103860), (828, 98090), (920, 88281), (1020, 79626), (1035, 78472), (1154, 70380), (1173, 69240), (1224, 66355), (1380, 58854), (1530, 53084), (1564, 51930), (1656, 49045), (1731, 46920), (1955, 41544), (2040, 39813), (2070, 39236), (2308, 35190), (2346, 34620), (2760, 29427), (2885, 28152), (3060, 26542), (3128, 25965), (3462, 23460), (3519, 23080), (3910, 20772), (4140, 19618), (4616, 17595), (4692, 17310), (5193, 15640), (5770, 14076), (5865, 13848), (6120, 13271), (6924, 11730), (7038, 11540), (7820, 10386), (8280, 9809), (8655, 9384)]